Igneous rock is one of the three main rock types, the others being sedimentary
and metamorphic. Igneous rock is formed through the cooling and solidification of
Photographs and descriptions of intrusive and extrusive igneous rocks with links
to detailed articles by Geology.com.
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Igneous rocks are formed by solidification of cooled magma (molten rock) either
below (plutonic) or above (volcanic) the surface of the earth. The magma ...
Jun 10, 2014 ... Igneous rock, any of various crystalline or glassy rocks formed by the cooling and
solidification of molten earth material. Igneous rocks comprise ...
All rocks on Earth were initially igneous in nature. Igneous rocks form as liquid
magma cools, forming crystal structured rocks. There are many different types of ...
May 22, 2014 ... This is the first chapter from Igneous, Sedimentary and Metamorphic Rocks, a
Science title from ClickView. The full 10 minute program is ...
Igneous rock definition at Dictionary.com, a free online dictionary with
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There are three great categories of rocks, igneous, sedimentary and
metamorphic, and most of the time, they're simple to tell apart. They are all
connected in the ...
Dec 15, 2014 ... Igneous rocks (from the Greek word for fire) form from when hot, molten rock (
magma) crystallizes and solidifies. The melt originates deep ...